Portland / Boothbay Harbor
Boothbay Harbor has 2,096 residents (give or take 238) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US2301506120, checked 2026-10-19), about 368 people per square mile.
Boothbay Harbor is about 31 miles from the Census center point for Portland in a straight line and covers 5.699 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).
The quote form takes a ZIP code; for Boothbay Harbor that is 04538, 04575 (Census 2020 ZCTA to county subdivision and ZCTA to place relationship files, ZIP areas at least 20% inside the town, https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_cousub20_natl.txt and https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt, checked 2026-10-19).
Of the 1,078 occupied homes in Boothbay Harbor, 9% heat with natural gas, 49% with heating oil, 8% with electricity and 27% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US2301506120, checked 2026-10-19).
Heating oil is the largest single fuel in Boothbay Harbor at 49%, ahead of propane at 27%, so the usual job here is an oil boiler or furnace coming out and a cold-climate heat pump going in, with the oil tank removed.
Boothbay Harbor has 7 points less oil heat than Lincoln County as a whole, where 56% of homes burn oil, and the same 8% electric share (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US23015, checked 2026-10-19).
Boothbay Harbor has 2,200 housing units, 40% built before 1940 and 66% before 1980, with 14% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2301506120, checked 2026-10-19).
Boothbay Harbor has 14 points more pre-1940 homes than Lincoln County as a whole (26%) and 7 points fewer homes built after 2000 than the county's 21% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US23015, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Boothbay Harbor home was built in 1956 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US2301506120, checked 2026-10-19) and the median home has 5.6 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US2301506120, checked 2026-10-19).
77% of Boothbay Harbor homes are single-family detached, 7% are in two- to four-unit buildings and 8% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US2301506120, checked 2026-10-19).
With 77% detached houses and 7% in small multi-family buildings, a Boothbay Harbor quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 24% of Boothbay Harbor homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2301506120, checked 2026-10-19), the landlord signs the quote in many of them.
Boothbay Harbor has 7 points fewer detached houses than Lincoln County overall (84%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US23015, checked 2026-10-19).
40% of Boothbay Harbor homes were built before 1940 and 66% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2301506120, checked 2026-10-19), so insulation is the first sizing question: an older home leaks more heat per square foot, and the installer runs a room-by-room heat-loss calculation to size the system for what the walls and windows actually hold in, not just the floor plan.
No electric utility is on file for Boothbay Harbor on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Efficiency Maine whole-home heat pump rebate, run by Efficiency Maine, is a live program for Maine addresses and lists a standard figure of $3,000 (registry row 7 verified 2026-10-15, https://www.efficiencymaine.com/whole-home-heat-pump-rebates/, checked 2026-10-16); confirm eligibility for the Boothbay Harbor address before counting it. With 8% of Boothbay Harbor homes already on electric heat and 85% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Median household income in Boothbay Harbor is $62,800 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US2301506120, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
Heating design temperature: -2F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Lincoln County row, 99% heating, PDF pages 54 to 55 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.
That -2F figure is the Lincoln County cold-day number a Boothbay Harbor heat pump is sized against, so ask the installer to show the system's heating output at -2F, not at the milder rating-label temperature.
Ask what happens to the oil tank, since 49% of the 1,078 occupied Boothbay Harbor homes have one and removal is usually a separate line on the quote.
Ask for the heat-loss calculation room by room; a Boothbay Harbor house from before 1940 (40% of the 2,200 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Boothbay Harbor. The public number is the number the contractor quotes from.
No local contractor is named on this door for Boothbay Harbor yet. A request from this page goes to the first licensed shop that takes the door.